# LWS6028A4

**Lewa Micro** · MOSFETs · TO-252

LWS6028A4 from Lewa Micro, in a TO-252. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | G | input | Gate terminal, with a maximum gate-to-source voltage of ±20 V and a gate threshold voltage of -1.3 V min to -2.3 V max at ID=-250µA. |
| 2 | D | passive | Drain terminal (also the exposed tab), rated for a maximum drain-to-source voltage of -60 V and a continuous drain current of -45 A at TC=25℃. |
| 3 | S | passive | Source terminal, with a maximum continuous body-diode forward current of -45 A at TC=25℃. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Lewa Micro |
| Package | TO-252 |
| Category | Triode/MOS Tube/Transistor |
| Pins | 3 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Drain-to-Source Voltage | VDSS | -60 |  |  | V |  | 1 |
| Gate-to-Source Voltage | VGS | -20 |  | 20 | V |  | 1 |
| Continuous Drain Current | ID | -45 |  |  | A | TC=25℃ | 1 |
| Continuous Drain Current | ID | -29 |  |  | A | TC=100℃ | 1 |
| Pulsed Drain Current | IDM | -180 |  |  | A | Repetitive rating; pulse width limited by maximum junction temperature | 1 |
| Single pulse avalanche energy | EAS |  |  | 72 | mJ | VDD=-30V, L=0.1mH, RG=25Ω, Starting Tj=25℃ | 1 |
| Power Dissipation | PD |  |  | 95 | W | TC=25℃ | 1 |
| Operating Junction and Storage Temperature Range | TJ, TSTG | -55 |  | 150 | ℃ |  | 1 |
| Maximum Temperature for Soldering | TL |  |  | 260 | ℃ |  | 1 |
| Thermal Resistance, Junction-to-Case | RθJC |  | 1.32 |  | ℃/W |  | 1 |
| Thermal Resistance, Junction-to-Ambient | RθJA |  | 60 |  | ℃/W | Device on 40 mm x 40 mm x 1.5 mm epoxy PCB FR4 with 6 cm2 (one layer, 70 μm thick) copper area for drain connection | 1 |
| Drain to Source Breakdown Voltage | VBR(DSS) | -60 |  |  | V | VGS=0V, ID=-250μA | 2 |
| Drain to Source Leakage Current | IDSS |  |  | -1 | μA | VDS=-60V, VGS=0V | 2 |
| Gate to Source Forward Leakage | IGSS(F) |  |  | 100 | nA | VGS=+20V, VDS=0V | 2 |
| Gate to Source Reverse Leakage | IGSS(R) |  |  | -100 | nA | VGS=-20V, VDS=0V | 2 |
| Gate Threshold Voltage | VGS(TH) | -1.3 | -1.8 | -2.3 | V | VDS=VGS, ID=-250μA | 2 |
| Drain-to-Source On-Resistance | RDS(ON)1 |  |  | 18 | mΩ | VGS=-10V, ID=-10A | 2 |
| Drain-to-Source On-Resistance | RDS(ON)2 |  |  | 24 | mΩ | VGS=-4.5V, ID=-8.0A | 2 |
| Diode Forward Voltage | VSD |  |  | -1.2 | V | IS=-10A, VGS=0V | 2 |

## CAD (KiCad official)

- Symbol: `LWS6028A4`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `lws6028a4-etched.step` / `lws6028a4-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lws6028a4.step` / `lws6028a4.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Lewa Micro datasheet](docs/lws6028a4-datasheet.pdf) (10 pp, sha256 `2cd2d4044667d5ec`, retrieved 2026-11-04, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/lws6028a4-datasheet.pdf)